Supporting and sealing means for cyanide pots



F. J. PETERSON SUPPORTING AND SEALING MEANS FOR CYANIDE POTS Filed May 5, 1928 I? JPeZerwlz Patented Dec. 18,1928, 3

1 NIT TATES- PAT T F CE; 1 ime? -l vt' s i O QiF mHmAN. l

surron'r ne nlinjsnaLinomnAns FOR cYAnIDE-Pors} 5 I I Application fi eaiia 3,1923. Serial No. 274,797. I l f The invention relates to cyanide pots and througha furnace orthelike, showing the more particularly to means for supporting a improved means for supporting a'c'yanide pot" pot in the heatingchamber'of a furnace or within the heating chamber thereof; p 55 the like-and for sealing the same to prevent Fig. 2, a top plan view of the supporting 5 the cyanide vapor from entering the heatring in assembled position; and i ing chamber. F ig; 3, an enlarged fragmentary sectional It is common practice in supporting a cya view of a portion of the cyanide pot and s upnide pot in a furnace or the like to provide a porting ring. 7 v I j c U substantially horizontal peripheral rim Similar v numerals refer to similar parts 10 flange at the upper open end ofthe pot, this throughout the drawing; j e

rim flange being provided with spaced de-s The furnace is shown'conventionall'y at 1 1 pendingannular flanges" adapted to seat in and provided with the heating chamber. 2, I

a sand sealing channel for the purpose of which may be of circular cross section and attempting to preventthe admission of cyawhich is adapted to be heated by electric, renide vapor to theheating,chamber.,v Vsistance elements or any suitable form of fuel It has been found, however, that it is next as desired. 7 to impossible to prevent the cyanide from en'- The roof 3 of the furnace may be provided tering'the heating chamber with such a conwith the central opening 4 of sufficient 'diam'e: 70" struction and this is a serious objection, parter to permit the cyanide pot 5 to be received ticularly where electric heating elements are therethrough.

7 used in the furnace, astliecyanide vapor com- 7 This pot may be formed of pressed steel bined with air has a very detrimental effect and is preferably of the shape shown, having not only upon the exterior of the pot but also the substantially horizontal annular flange 6 75 upon the heating elements. V at its upper open end. The object of the-present improvement is For the purpose of supporting the cyanide to provide means for supporting a cyanide potwithin the heating chamber of the furpot in the heating chamber of a furnace or nace,a supporting ringis'provided, compristhe like and for effectively and practically ing two similar sections indicated generally so sealing the joint between the pot and supat 7, having the vertical flanges 8 at their v porting ring to prevent the cyanide or cyameeting edges adapted to be clamped to nide vapors from entering the heating'chams getheras by the clamping bolts 9 and nuts 10.

her, thus preventing damage to the exterior This ringis provided at its inner perimeter ofthe pot and the heating elements or the with a horizontally disposed channel '11 85 like in the furnace,- e which receives the annularfiange 6 ofthe The above and other objects may beratcyanide pot. e I

tained byproviding a horizontally disposed Before fitting the two halves of the ring annularflange at the upper open end of the together upon the pot, an asbestos rope gasket 1 pot, a supporting ring being formed of two as shown at 12 is first placed in the channel .90 halves provided with channel portions to reand when the ring sections are clamped to- 40 ceive the flange of the pot, a. gasket of asbestos gether around the pot, this gasket is comrope or the like being compressedin these pressed, making an effective sealp channels to effectively seal the joint between I The supporting ring is preferably inclined the pot and supporting ring. downward and outward as shown at 13 for The supporting ring is preferably annucontact withthe similarly shaped roof 3 of larly inclined downward and outward and the furnace. and may be provided near its provided with a depending annular flange periphery with the depending'annularflange near its periphery-for engagement in a sand la adapted to be located within the channel seal provided upon the top of the furnace. or trough 15 located upon the top of the roof f- An embodiment of the invention thus set and filled with sand to form a sand seal be- 50 forth in general terms is illustrated. in the tween the supporting ring and the roof of accompanying drawing, in which the furnace.- V

Figure 1 is a vertical sectional view With such a construction it has been found 7 that an effective seal is produced between the between the flange and channel to form a 15 pot and the clamping ring, preventing the seal between the pot and ring. leakage of an cyanide into the interior of the 2. In combination with a pot having a heating oham er of the furnace and thus preperipheral flange thereon, a ring formed of 5 venting damage by cyanide vapors to the extwo separable parts for supporting the pot terior of the pot and to heating elements or in a furnace or the like, said ring being pro- 20 the like Within the furnace. vided With an annular channel for receiving I claim: 831d flange, and meansvfor; clamping the ring 1. In combination with a pot having a parts together for compressing a gasket be- 1 peripheral flange thereon, wring fnrmedi of tweemthwfl ange and'ehannel to form a seal two separable parts for supporting the pot between the pot and ring. v 25 in a furnace or the like, said ring being pro- 'Initestimony that I claim the above, I have vided with an annular channel to receive said hereunto subscribed my name. flange, and means for compressing av gasket F REDGLF J. PETERSON. 

